Sources of nitrous oxide and the fate of mineral nitrogen in subarctic permafrost peat soils
Jenie Gil,Maija E. Marushchak,Tobias Rütting,Elizabeth M. Baggs,Tibisay Pérez,Alexander Novakovskiy,Tatiana Trubnikova,Dmitry Kaverin,Pertti J. Martikainen,and Christina Biasi
Department of Environmental and Biological Sciences, University of
Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Department of Biological and Environmental Science, University of
Jyväskylä, P.O. Box 35, 40014 Jyväskylä,
Finland
Tobias Rütting
Department of Earth Sciences, University of Gothenburg, P.O. Box 460, 40530 Gothenburg, Sweden
Elizabeth M. Baggs
Global Academy of Agriculture and Food Security, The Royal (Dick)
School of Veterinary Studies, University of Edinburgh, Easter Bush Campus,
Midlothian EH25 9RG, UK
Tibisay Pérez
Centro de Ciencias Atmosféricas y Biogeoquímica (IVIC), Aptdo
20634, Caracas 1020A, Venezuela
Alexander Novakovskiy
Institute of Biology, Komi SC UB RAS, 167982 Syktyvkar, Russia
Tatiana Trubnikova
Department of Environmental and Biological Sciences, University of
Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Dmitry Kaverin
Institute of Biology, Komi SC UB RAS, 167982 Syktyvkar, Russia
Pertti J. Martikainen
Department of Environmental and Biological Sciences, University of
Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Christina Biasi
Department of Environmental and Biological Sciences, University of
Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
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N2O emissions from permafrost soils represent up to 11.6 % of total N2O emissions from natural soils, and their contribution to the global N2O budget will likely increase due to climate change. A better understanding of N2O production from permafrost soil is needed to evaluate the role of arctic ecosystems in the global N2O budget. By studying microbial N2O production processes in N2O hotspots in permafrost peatlands, we identified denitrification as the dominant source of N2O in these surfaces.
N2O emissions from permafrost soils represent up to 11.6 % of total N2O emissions from natural...
